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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
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In 3D ultrasound color Doppler imaging (CDI), 8-16 pulse transmissions (ensembles) per each scanline are used for effective clutter rejection and flow estimation, but it yields a low volume acquisition rate. In this paper, we have evaluated three flow estimation methods: autoregression (AR), eigendecomposition (ED), and autocorrelation combined with adaptive clutter rejection (AC-ACR) for a small ensemble size (E=4). The performance of AR, ED and AC-ACR methods was compared using 2D and 3D in vivo data acquired under different clutter conditions (common carotid artery, kidney and liver). To evaluate the effectiveness of three methods, receiver operating characteristic (ROC) curves were generated. For 2D kidney in vivo data, the AC-ACR method outperforms the AR and ED methods in terms of the area under the ROC curve (AUC) (0.852 vs. 0.793 and 0.813, respectively). Similarly, the AC-ACR method shows higher AUC values for 2D liver in vivo data compared to the AR and ED methods (0.855 vs. 0.807 and 0.823, respectively). For the common carotid artery data, the AR provides higher AUC values, but it suffers from biased estimates. For 3D in vivo data acquired from a kidney transplant patient, the AC-ACR with E=4 provides an AUC value of 0.799. These in vivo experiment results indicate that the AC-ACR method can provide more robust flow estimates compared to the AR and ED methods with a small ensemble size.
목차
등록된 정보가 없습니다.
참고문헌 (21)
참고문헌 신청
C. Kasai / 1985 / Real-time two-dimensional blood flow imaging using an autocorrelation techniques / IEEE Trans.Sonics.Ultrason. 32 (3) : 458 ~ 463
D. E. Kruse / 2002 / A new high resolution color flow system using an eigendecomposition-based adaptive filter for clutter rejection / IEEE Trans.Ultrason.Ferroelect.Freq.Co
D.H. Pretorius / 1992 / 3-dimensional sonographic analysis based on color flow Doppler and gray scale image data:a preliminary report / J.Ultrasound Med 11 (5) : 225 ~ 232
H. Tsujino / 2000 / Impact of temporal resolution on flow quantification by real-time 3D color Doppler echocardiography:numerical modeling and animal validation study / Compu
H.Torp / 1997 / Clutter rejection filters in color flow imaging:a theoretical approach / IEEE Trans.Ultrason.Ferroelect.Freq.Control 44 (2) : 417 ~ 424
D. E. Kruse / 2002 / A new high resolution color flow system using an eigendecomposition-based adaptive filter for clutter rejection / IEEE Trans.Ultrason.Ferroelect.Freq.Co
D.H. Pretorius / 1992 / 3-dimensional sonographic analysis based on color flow Doppler and gray scale image data:a preliminary report / J.Ultrasound Med 11 (5) : 225 ~ 232
H. Tsujino / 2000 / Impact of temporal resolution on flow quantification by real-time 3D color Doppler echocardiography:numerical modeling and animal validation study / Compu
H.Torp / 1997 / Clutter rejection filters in color flow imaging:a theoretical approach / IEEE Trans.Ultrason.Ferroelect.Freq.Control 44 (2) : 417 ~ 424
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